<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<body>
    <p id="p">123</p>
    <script language="javascript">
        const person = 'Lydia'
        const age = 21
        console.log`${person} is ${age} years old`
    </script>
</body>
</html>